Add WebAppDefn 1.0 declaration file
Add WebAppDefn 1.0 declaration file

(see https://github.com/ossf/wg-security-tooling/wiki/WebAppDefn)

bkimminich/juice-shop,bkimminich/juice-shop,bkimminich/juice-shop,bkimminich/juice-shop,bkimminich/juice-shop,bkimminich/juice-shop